Home / 1,973.07-2,722.83-1,187.16

Finding the Fourth Proportional to 1,973.07, 2,722.83 and 1,187.16

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Solution

The fourth proportional to 1,973.07, 2,722.83 and 1,187.16 is: 1,638.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,973.07 : 2,722.83 = 1,187.16 : x
  2. Step 2: Convert to fraction form
    1,973.07/2,722.83 = 1,187.16/x
  3. Step 3: Cross multiply
    1,973.07x = 2,722.83 × 1,187.16
  4. Step 4: Simplify right side
    1,973.07x = 3,232,434.86
  5. Step 5: Solve for x
    x = 3,232,434.86/1,973.07
  6. Step 6: Final answer
    x = 1,638.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.